Nursing & Medicine Essay Example | Topics and Well Written Essays - 500 words

Nursing & Medicine - Essay ExampleThe liver is the largest gland in the craniate body, composed of a spongy mass of wedge-shaped lobes that has many metabolic and secretory functions. It is a reddish-brown in color and is located in the stop number right part of the abdominal cavity extending 3-4 inches to the left of the midplane. It weighs about three pounds and is approximately 3-5% fat. It performs over 500 functions.In humans the pancreas weighs approximately 80 grams, has slightly the configuration of an inverted smokers pipe, and is situated in the upper abdomen. The head of the pancreas (equivalent to the bowl of the pipe) is immediately adjacent to the duodenum, while its body and tail extend across the midline nearly to the spleen. The bulk of pancreatic tissue is devoted to its exocrine function, the elaboration of digestive enzymes that are secreted via the pancreatic ducts into the duodenum.Most oral contraceptives are combination pills containing a combination of the hormones estrogen and progesterone to prevent ovulation (the release of an egg during the monthly cycle). A woman cannot concieve if she doesnt ovulate because there is no egg to be fertilized. The pad of paper also works by thickening the mucus around the cervix, which makes it difficult for sperm to enter the uterus and reach any eggs that may pretend been released.